periodontitis and tooth discoloration

[Kathi2]

Hello, I was diagnosed with periodontitis about 2 weeks ago. I went to a new dentist and I'm worried that the diagnosis might not be correct. Does it look like periodontitis on my lower incisors?

If I have root planing and cleaning done, will the yellow discoloration on my teeth go away? Especially behind my upper incisors? The last time I went to the dentist was 5 years ago and had my teeth cleaned. But the yellow spots couldn't be removed that way either. What can I do and how does the dentist remove such yellow spots and discoloration?
Thank you for your answer.

 

[Gordon]

You can't diagnose periodontal disease from photographs.
The yellow marks look mostly like staining so I'd expect them to be removed mostly during polishing the teeth.